Cabin Fuel Smell?

chrisp · 15-09-11, 05:15 PM

Wonder if anyone could point me in the right direction for this one?

The last 2 days my 80 has a fuel smell inside when driving (cabin vents), seems to be more intense when cold or racing the engine... I have had a butchers under the bonnet to no avail

No obvious leaks, but have noticed a slight back fire (pop pop) when gearing down from the exhaust.

Suggestions to the cause/fix would be greatly appreciated.

Chrisp.

Audi Derek · 15-09-11, 07:19 PM

Could be your exhaust is blowing / holed.

..

rich.r · 15-09-11, 07:24 PM

as above

sucking in air through a joint or hole in the exhaust (or manifold) and pushing fumes out under load

chrisp · 15-09-11, 08:15 PM

Thanks, will dust the ramps off and have a look tomorrow.

john johnson · 15-09-11, 08:18 PM

May be well wrong but check the fuel lines too .....

missfire · 15-09-11, 09:11 PM

on top of the above, i've had fuel the tank/sender sealing ring letting out a whiff! but that was a volvo.

15-09-11, 07:19 PM	#2
Audi Derek “Been raced and rallied” Classic Audi Club Member Join Date: May 2008 Location: Bridgwater Somerset Posts: 1,431	Could be your exhaust is blowing / holed. .. __________________ Vorspurng durch Technik (see it does work)

15-09-11, 08:15 PM	#4
chrisp Grown up member Classic Audi Club Member Join Date: Sep 2011 Location: Cheshire Posts: 40	Thanks, will dust the ramps off and have a look tomorrow. __________________ B3 80, Kamei. Toyota MasterAce. Mazda 5.

15-09-11, 08:18 PM	#5
john johnson Moderator of sausages Classic Audi Club Member Join Date: Sep 2008 Location: sheffield Posts: 13,331	May be well wrong but check the fuel lines too ..... __________________ Mr OCD http://s159.photobucket.com/albums/t144/jsquatts/ Daily rs4 b7 with buckets that play havoc with my piles And if you are reading this as James may would say ' you're a cock '

15-09-11, 07:24 PM	#3
rich.r Senior Member Join Date: Jul 2010 Posts: 1,832	as above sucking in air through a joint or hole in the exhaust (or manifold) and pushing fumes out under load

15-09-11, 09:11 PM	#6
missfire making wooden things Classic Audi Club Member Join Date: Dec 2009 Location: cow land Posts: 8,156	on top of the above, i've had fuel the tank/sender sealing ring letting out a whiff! but that was a volvo.